Commit b8fd76f4 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'iommu-updates-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu 

Pull iommu updates from Joerg Roedel:
 "Core code:
   - map/unmap_pages() cleanup
   - SVA and IOPF refactoring
   - Clean up and document return codes from device/domain attachment

  AMD driver:
   - Rework and extend parsing code for ivrs_ioapic, ivrs_hpet and
     ivrs_acpihid command line options
   - Some smaller cleanups

  Intel driver:
   - Blocking domain support
   - Cleanups

  S390 driver:
   - Fixes and improvements for attach and aperture handling

  PAMU driver:
   - Resource leak fix and cleanup

  Rockchip driver:
   - Page table permission bit fix

  Mediatek driver:
   - Improve safety from invalid dts input
   - Smaller fixes and improvements

  Exynos driver:
   - Fix driver initialization sequence

  Sun50i driver:
   - Remove IOMMU_DOMAIN_IDENTITY as it has not been working forever
   - Various other fixes"

* tag 'iommu-updates-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (74 commits)
  iommu/mediatek: Fix forever loop in error handling
  iommu/mediatek: Fix crash on isr after kexec()
  iommu/sun50i: Remove IOMMU_DOMAIN_IDENTITY
  iommu/amd: Fix typo in macro parameter name
  iommu/mediatek: Remove unused "mapping" member from mtk_iommu_data
  iommu/mediatek: Improve safety for mediatek,smi property in larb nodes
  iommu/mediatek: Validate number of phandles associated with "mediatek,larbs"
  iommu/mediatek: Add error path for loop of mm_dts_parse
  iommu/mediatek: Use component_match_add
  iommu/mediatek: Add platform_device_put for recovering the device refcnt
  iommu/fsl_pamu: Fix resource leak in fsl_pamu_probe()
  iommu/vt-d: Use real field for indication of first level
  iommu/vt-d: Remove unnecessary domain_context_mapped()
  iommu/vt-d: Rename domain_add_dev_info()
  iommu/vt-d: Rename iommu_disable_dev_iotlb()
  iommu/vt-d: Add blocking domain support
  iommu/vt-d: Add device_block_translation() helper
  iommu/vt-d: Allocate pasid table in device probe path
  iommu/amd: Check return value of mmu_notifier_register()
  iommu/amd: Fix pci device refcount leak in ppr_notifier()
  ...
parents 2f26e424 e3eca2e4

Documentation/admin-guide/kernel-parameters.txt

+22 −5
Original line number Diff line number Diff line
@@ -2313,7 +2313,13 @@ 
			Provide an override to the IOAPIC-ID<->DEVICE-ID

			mapping provided in the IVRS ACPI table.

			By default, PCI segment is 0, and can be omitted.

			For example:



			For example, to map IOAPIC-ID decimal 10 to

			PCI segment 0x1 and PCI device 00:14.0,

			write the parameter as:

				ivrs_ioapic=10@0001:00:14.0



			Deprecated formats:

			* To map IOAPIC-ID decimal 10 to PCI device 00:14.0

			  write the parameter as:

				ivrs_ioapic[10]=00:14.0
@@ -2325,7 +2331,13 @@ 
			Provide an override to the HPET-ID<->DEVICE-ID

			mapping provided in the IVRS ACPI table.

			By default, PCI segment is 0, and can be omitted.

			For example:



			For example, to map HPET-ID decimal 10 to

			PCI segment 0x1 and PCI device 00:14.0,

			write the parameter as:

				ivrs_hpet=10@0001:00:14.0



			Deprecated formats:

			* To map HPET-ID decimal 0 to PCI device 00:14.0

			  write the parameter as:

				ivrs_hpet[0]=00:14.0
@@ -2336,15 +2348,20 @@ 
	ivrs_acpihid	[HW,X86-64]

			Provide an override to the ACPI-HID:UID<->DEVICE-ID

			mapping provided in the IVRS ACPI table.

			By default, PCI segment is 0, and can be omitted.



			For example, to map UART-HID:UID AMD0020:0 to

			PCI segment 0x1 and PCI device ID 00:14.5,

			write the parameter as:

				ivrs_acpihid[0001:00:14.5]=AMD0020:0

				ivrs_acpihid=AMD0020:0@0001:00:14.5



			By default, PCI segment is 0, and can be omitted.

			For example, PCI device 00:14.5 write the parameter as:

			Deprecated formats:

			* To map UART-HID:UID AMD0020:0 to PCI segment is 0,

			  PCI device ID 00:14.5, write the parameter as:

				ivrs_acpihid[00:14.5]=AMD0020:0

			* To map UART-HID:UID AMD0020:0 to PCI segment 0x1 and

			  PCI device ID 00:14.5, write the parameter as:

				ivrs_acpihid[0001:00:14.5]=AMD0020:0



	js=		[HW,JOY] Analog joystick

			See Documentation/input/joydev/joystick.rst.

Documentation/devicetree/bindings/iommu/arm,smmu.yaml

+169 −9
Original line number Diff line number Diff line
@@ -28,19 +28,50 @@ properties: 
          - enum:

              - qcom,msm8996-smmu-v2

              - qcom,msm8998-smmu-v2

              - qcom,sdm630-smmu-v2

          - const: qcom,smmu-v2



      - description: Qcom SoCs implementing "arm,mmu-500"

      - description: Qcom SoCs implementing "qcom,smmu-500" and "arm,mmu-500"

        items:

          - enum:

              - qcom,qcm2290-smmu-500

              - qcom,qdu1000-smmu-500

              - qcom,sc7180-smmu-500

              - qcom,sc7280-smmu-500

              - qcom,sc8180x-smmu-500

              - qcom,sc8280xp-smmu-500

              - qcom,sdm670-smmu-500

              - qcom,sdm845-smmu-500

              - qcom,sm6115-smmu-500

              - qcom,sm6350-smmu-500

              - qcom,sm6375-smmu-500

              - qcom,sm8150-smmu-500

              - qcom,sm8250-smmu-500

              - qcom,sm8350-smmu-500

              - qcom,sm8450-smmu-500

          - const: qcom,smmu-500

          - const: arm,mmu-500



      - description: Qcom SoCs implementing "arm,mmu-500" (non-qcom implementation)

        deprecated: true

        items:

          - enum:

              - qcom,sdx55-smmu-500

              - qcom,sdx65-smmu-500

          - const: arm,mmu-500



      - description: Qcom SoCs implementing "arm,mmu-500" (legacy binding)

        deprecated: true

        items:

          # Do not add additional SoC to this list. Instead use two previous lists.

          - enum:

              - qcom,qcm2290-smmu-500

              - qcom,sc7180-smmu-500

              - qcom,sc7280-smmu-500

              - qcom,sc8180x-smmu-500

              - qcom,sc8280xp-smmu-500

              - qcom,sdm845-smmu-500

              - qcom,sm6115-smmu-500

              - qcom,sm6350-smmu-500

              - qcom,sm6375-smmu-500

              - qcom,sm8150-smmu-500
@@ -48,13 +79,28 @@ properties: 
              - qcom,sm8350-smmu-500

              - qcom,sm8450-smmu-500

          - const: arm,mmu-500



      - description: Qcom Adreno GPUs implementing "arm,smmu-500"

        items:

          - enum:

              - qcom,sc7280-smmu-500

              - qcom,sm8250-smmu-500

          - const: qcom,adreno-smmu

          - const: arm,mmu-500

      - description: Qcom Adreno GPUs implementing "arm,smmu-v2"

        items:

          - enum:

              - qcom,msm8996-smmu-v2

              - qcom,sc7180-smmu-v2

              - qcom,sdm630-smmu-v2

              - qcom,sdm845-smmu-v2

              - qcom,sm6350-smmu-v2

          - const: qcom,adreno-smmu

          - const: qcom,smmu-v2

      - description: Qcom Adreno GPUs on Google Cheza platform

        items:

          - const: qcom,sdm845-smmu-v2

          - const: qcom,smmu-v2

      - description: Marvell SoCs implementing "arm,mmu-500"

        items:

          - const: marvell,ap806-smmu-500
@@ -147,16 +193,12 @@ properties: 
      present in such cases.



  clock-names:

    items:

      - const: bus

      - const: iface

    minItems: 1

    maxItems: 7



  clocks:

    items:

      - description: bus clock required for downstream bus access and for the

          smmu ptw

      - description: interface clock required to access smmu's registers

          through the TCU's programming interface.

    minItems: 1

    maxItems: 7



  power-domains:

    maxItems: 1
@@ -206,6 +248,124 @@ allOf: 
        reg:

          maxItems: 1



  - if:

      properties:

        compatible:

          contains:

            enum:

              - qcom,msm8998-smmu-v2

              - qcom,sdm630-smmu-v2

    then:

      anyOf:

        - properties:

            clock-names:

              items:

                - const: bus

            clocks:

              items:

                - description: bus clock required for downstream bus access and for

                    the smmu ptw

        - properties:

            clock-names:

              items:

                - const: iface

                - const: mem

                - const: mem_iface

            clocks:

              items:

                - description: interface clock required to access smmu's registers

                    through the TCU's programming interface.

                - description: bus clock required for memory access

                - description: bus clock required for GPU memory access

        - properties:

            clock-names:

              items:

                - const: iface-mm

                - const: iface-smmu

                - const: bus-mm

                - const: bus-smmu

            clocks:

              items:

                - description: interface clock required to access mnoc's registers

                    through the TCU's programming interface.

                - description: interface clock required to access smmu's registers

                    through the TCU's programming interface.

                - description: bus clock required for downstream bus access

                - description: bus clock required for the smmu ptw



  - if:

      properties:

        compatible:

          contains:

            enum:

              - qcom,msm8996-smmu-v2

              - qcom,sc7180-smmu-v2

              - qcom,sdm845-smmu-v2

    then:

      properties:

        clock-names:

          items:

            - const: bus

            - const: iface



        clocks:

          items:

            - description: bus clock required for downstream bus access and for

                the smmu ptw

            - description: interface clock required to access smmu's registers

                through the TCU's programming interface.



  - if:

      properties:

        compatible:

          contains:

            const: qcom,sc7280-smmu-500

    then:

      properties:

        clock-names:

          items:

            - const: gcc_gpu_memnoc_gfx_clk

            - const: gcc_gpu_snoc_dvm_gfx_clk

            - const: gpu_cc_ahb_clk

            - const: gpu_cc_hlos1_vote_gpu_smmu_clk

            - const: gpu_cc_cx_gmu_clk

            - const: gpu_cc_hub_cx_int_clk

            - const: gpu_cc_hub_aon_clk



        clocks:

          items:

            - description: GPU memnoc_gfx clock

            - description: GPU snoc_dvm_gfx clock

            - description: GPU ahb clock

            - description: GPU hlos1_vote_GPU smmu clock

            - description: GPU cx_gmu clock

            - description: GPU hub_cx_int clock

            - description: GPU hub_aon clock



  - if:

      properties:

        compatible:

          contains:

            enum:

              - qcom,sm6350-smmu-v2

              - qcom,sm8150-smmu-500

              - qcom,sm8250-smmu-500

    then:

      properties:

        clock-names:

          items:

            - const: ahb

            - const: bus

            - const: iface



        clocks:

          items:

            - description: bus clock required for AHB bus access

            - description: bus clock required for downstream bus access and for

                the smmu ptw

            - description: interface clock required to access smmu's registers

                through the TCU's programming interface.



examples:

  - |+

    /* SMMU with stream matching or stream indexing */

Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml

+2 −0
Original line number Diff line number Diff line
@@ -82,6 +82,7 @@ properties: 
          - mediatek,mt8195-iommu-vdo        # generation two

          - mediatek,mt8195-iommu-vpp        # generation two

          - mediatek,mt8195-iommu-infra      # generation two

          - mediatek,mt8365-m4u  # generation two



      - description: mt7623 generation one

        items:
@@ -132,6 +133,7 @@ properties: 
      dt-binding/memory/mt8186-memory-port.h for mt8186,

      dt-binding/memory/mt8192-larb-port.h for mt8192.

      dt-binding/memory/mt8195-memory-port.h for mt8195.

      dt-binding/memory/mediatek,mt8365-larb-port.h for mt8365.



  power-domains:

    maxItems: 1

arch/s390/include/asm/pci.h

+3 −2
Original line number Diff line number Diff line
@@ -117,7 +117,9 @@ struct zpci_bus { 
struct zpci_dev {

	struct zpci_bus *zbus;

	struct list_head entry;		/* list of all zpci_devices, needed for hotplug, etc. */

	struct list_head iommu_list;

	struct kref kref;

	struct rcu_head rcu;

	struct hotplug_slot hotplug_slot;



	enum zpci_state state;
@@ -155,7 +157,6 @@ struct zpci_dev { 


	/* DMA stuff */

	unsigned long	*dma_table;

	spinlock_t	dma_table_lock;

	int		tlb_refresh;



	spinlock_t	iommu_bitmap_lock;
@@ -220,7 +221,7 @@ void zpci_device_reserved(struct zpci_dev *zdev); 
bool zpci_is_device_configured(struct zpci_dev *zdev);



int zpci_hot_reset_device(struct zpci_dev *zdev);

int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64);

int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64, u8 *);

int zpci_unregister_ioat(struct zpci_dev *, u8);

void zpci_remove_reserved_devices(void);

void zpci_update_fh(struct zpci_dev *zdev, u32 fh);

arch/s390/kvm/pci.c

+4 −2
Original line number Diff line number Diff line
@@ -434,6 +434,7 @@ static void kvm_s390_pci_dev_release(struct zpci_dev *zdev) 
static int kvm_s390_pci_register_kvm(void *opaque, struct kvm *kvm)

{

	struct zpci_dev *zdev = opaque;

	u8 status;

	int rc;



	if (!zdev)
@@ -486,7 +487,7 @@ static int kvm_s390_pci_register_kvm(void *opaque, struct kvm *kvm) 


	/* Re-register the IOMMU that was already created */

	rc = zpci_register_ioat(zdev, 0, zdev->start_dma, zdev->end_dma,

				virt_to_phys(zdev->dma_table));

				virt_to_phys(zdev->dma_table), &status);

	if (rc)

		goto clear_gisa;
@@ -516,6 +517,7 @@ static void kvm_s390_pci_unregister_kvm(void *opaque) 
{

	struct zpci_dev *zdev = opaque;

	struct kvm *kvm;

	u8 status;



	if (!zdev)

		return;
@@ -554,7 +556,7 @@ static void kvm_s390_pci_unregister_kvm(void *opaque) 


	/* Re-register the IOMMU that was already created */

	zpci_register_ioat(zdev, 0, zdev->start_dma, zdev->end_dma,

			   virt_to_phys(zdev->dma_table));

			   virt_to_phys(zdev->dma_table), &status);



out:

	spin_lock(&kvm->arch.kzdev_list_lock);